Favorite SS Amp?

And the search continues. I am always looking for better. I currently have a pair of Dali Euphonia MS-4's which I love. I am using a Sherbourn 7/2100 which is a fine amp but not exactly what I am looking for. Ideally I am looking to go back to just 2 channel. Based on size and WAF constraints, I am limited to a stereo amp that will be in a cabinet so heat will be a consideration, although the bottom shelf could conceivably have 5-6 inches above it for heat dissipation if I went to a Class A amplifier. Budget is a consideration. Really not looking to spend much over 3-4K used. High current and respectable power would be a plus. Sonic signature is very important and big soundstage as well. Thanks in advance for all of your good input.

Good Listening,

Steve Bachman
Phoenix, AZ